Wrench.



PATENIED DEC. 24, 1907.

J. LOSBY.

WRENCH; APPLICATION FILED OCT. 24, 1907. I

JAMES LOSEY, OF GRAND RAPIDS, MICHIGAN.

WRENCH.

Specification of Letters Patent.

Patented Dec. 24, 190

Application filed October 24:, 1907- Serial No. 398,984-

To all whom it may concern:

Be it known that I, J AMES LosnY, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Mic iigan, have invented a new and useful Wrench, of which the following is a specifi cation.

This invention relates to an improvement in wrenches, the object being to provide a quick, sure and simple means for adjusting the jaws relatively to each other whereby the wrench is adapted to fit the heads of bolts, nuts, pipes, and other objectswhich it is desired to turn.

A further object of the invention pertains to a wire cutter combined with the wrench and operated by the same mechanism used for clamping the movable wrench jaw in fixed position.

With these and other objects in view, the invention comprises certain novel combinations and arrangements of parts, hereinafter described, and pointed out in the claims.

In the accompanying drawings :Figure 1 is a side elevation of the improved wrench. Fig. 2 is a similar view of the wrench with the movable jaw unlocked, certain parts being shown in section to more clearly illustrate the invention. Fig. 3 is a cross sectional view on the line 33 of Fig. 1.

Similar numerals of reference are used for the same parts on all the figures.

The numeral 1 indicates the main bar of the wrench having a handle 2 of any approved form at one end and a head 3 at its opposite end. The head 3 projects at a right angle from one side of the bar to form the fixed jaw 4 of the wrench, and at a shorter distance fromthe opposite side to constitute a hammer head 5 having a nail claw 6. The main bar 1 is preferably rectangular in cross section and has a series of teeth 7 made in the side from which the jaw 4 projects.

Slidably mounted on the main bar 1 is the coacting jaw 8 lying parallel to the fixed jaw 4 and movable to and from it. The

movable jaw 8 has in its rear side a recess 9 for the pivoted end of an operating lever 10,

provided with a hand grip 11 by means of which the lever is moved on its pivot pin 12- toward and away from that face of the main bar 1 on which the teeth 7 are formed. Through the lever 10 is a longitudinal slot 13, a similar slot 14 being formed in the main bar 1, said slots lying in the same plane and containing the locking mechanism of the movable jaw 8 and the wire cutter 15.

Pivoted in the slot 13 on a in 16 is a lever 17, the forward end 18 of wlii to a point and its edge sharpened to serve as one of the cutting blades of the wire cutter 15, the coacting fixed blades being made by notching the lever 10 on each side of the slot 13, as clearly shown in the drawings. The other end of the lever 17 is pivoted on opposite sides of a slide 19, which latter extends outwardly through the slot 14 in the main bar 1 and is provided with a T-head 2O projecting over the back of said bar. On each side of the lever 17 in position to engage the teeth 7 on the main bar 1 is a fixed ch is brought lug or pawl 21 shaped to engage with said teeth when the lever 10 is moved towards, and into contact with, the main bar and prevent the jaws 4 and 8 from separating.

Then the wrench is in the locked position represented in Fig. 1, the lever lOlies close to the main bar 1, and the pawl 21 is held in engagement with the teeth 7 thereon. The movable jaw 8 is therefore prevented from sliding in either direction. On opening the lever 10, the slide 19, which was raised when the lever was closed, is drawn down, releasing the pawls and permitting the jaw 10 to be moved to any desired position. If the lever 10 be now moved in the opposite direction, or towards the main bar, the slide 19 will be raised and the pawls 21 once more brought into engagement with the teeth 7. Continuing the closing movement, the lever 17 will be carried farther into the slot 13, but as its pivotal connection 22 with the slide 19 is above the center of the pivot 16, the downward movement of the lever 17 will force the lever 10 endwise and carry the jaw 8 slightly nearer the jaw 4, because the slide 19 is held against movement by the p awls 2 1 and teeth 7 Instead of providing the jaws with teeth, they may be made smooth or nearly so, as is the common form at the present time. The wrench may also be changed in form, provided the principle be retained and, instead of a monkey-wrench, as shown in the drawing, the invention may be applied to a pipe or other type of wrench.

When the lever is operated to unlock the movable jaw, the blade 18 is opened and a wire may be then placed in the fixed blade preparatory to being cut when the pivoted blade 15 is closed by the return movement having a fixed jaw and teeth on one side of the hand lever 10.

I claim 1. A Wrench comprising a slotted main bar having a fixed jaw, a slidable jaw carried by the main bar, a hand lever pivoted to the sliding jaw and having a slot therethrough in the same plane as the slot in the main bar, a lever pivoted to rock in the hand lever slot carrying a pawl adapted to engage teeth on the main bar, and a slide extending through the slot in the main bar and pivoted to the pawl carrying lever.

2. A wrench comprising a slotted main bar having a fixed jaw, a slidable jaw mounted on said main bar, a hand lever pivoted to the sliding jaw and having a slot therethrough, a lever pivoted in said slot having a cutting blade on its lower end and a pawl on its upper end adapted to engage teeth on the main bar, and a slide pivoted to said pawl lever extending through the slot in the main bar, and headed.

3. A wrench comprising 5 slotted main bar thereof, a slidable jaw mounted on said main bar and movable freely thereon, a hand lever pivoted to the sliding jaw to swing to and from the main bar and having a slot therethrough in the plane of the slot in the main bar, a lever pivoted in the slot in the hand lever and having on each side of its upper end a lug or pawl adapted to engage the teeth in the main bar, and a slide extending through the slot in the main bar and pivoted to the upper end of the pawl lever, the opposite end of said slide projecting beyond the main bar, and headed.

In testimony that I claim the foregoing as my own, I have hereto ai'fixed my signature in the presence of two witnesses.

JAMES LOSEY.

mark

Witnesses:

WM. CUMMINGS, E. D. OoMsTo0K. 

